Fixture for holding bag



FIG. 1 is an isometric view of a fixture for holding bag, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a fixture for holding bag, substantially as shown. 